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i need help from you guys ASAP please!!! (esp. carpenters)

Discussion in 'Garage / Workshop' started by TacoTitan11, May 6, 2012.

  1. May 6, 2012 at 6:01 PM
    #1
    TacoTitan11

    TacoTitan11 [OP] Well-Known Member

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    ok, i am in a dilemma here. i have a home improvement company coming out tommorow morning to install additional attic flooring. my house is built on a slab and of course like every other home, it has prefabricated trusses installed. am i asking for troubling by installing 180 sq, feet of additional storage flooring, i read somewhere online that pre-fab trusses are not designed for this additional weight. i am not really planning on putting heavy stuff up there, just typical garage and holiday decor junk, etc., totes, boxes, i need some expertsd here to chime in, thanks !!!!:cool:
     
  2. May 6, 2012 at 6:07 PM
    #2
    Bogg

    Bogg Well-Known Member

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    Electrician here so I'm of no use to you. I'm sure some members on here will chime in. Maybe PM Oz. I think he's a carpenter by trade.
     
  3. May 6, 2012 at 6:08 PM
    #3
    OZ-T

    OZ-T All of those moments....will be lost.....in time

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    The type of loading you are referring to will most likely be fine .

    Do your trusses free span long distances between walls ?
     
  4. May 6, 2012 at 6:18 PM
    #4
    TacoTitan11

    TacoTitan11 [OP] Well-Known Member

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    no, they dont
     
  5. May 6, 2012 at 6:20 PM
    #5
    OZ-T

    OZ-T All of those moments....will be lost.....in time

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    You'll be fine for the light loads you are talking about , my concern would be that , as most common trusses are 2x4 bottom chords , if they sheet the bottom chords , that only allows 3 1/2" for insulation which is usually R12 .

    They also MUST NOT cut out any of the truss webbing
     
  6. May 6, 2012 at 6:21 PM
    #6
    TacoTitan11

    TacoTitan11 [OP] Well-Known Member

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    one guy told me the flooring should be raised because we have blown insulation
     
  7. May 6, 2012 at 6:21 PM
    #7
    gsxrdoug

    gsxrdoug 2012 DCLB

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    Depends on if there is a load bearing wall underneath if so pre-fab trusses are usually the same if not better than the ones built onsite. When walking around up there don't step through the ceiling! Heavy stuff keep over load bearing walls. You'll be fine.
     
  8. May 6, 2012 at 6:22 PM
    #8
    OZ-T

    OZ-T All of those moments....will be lost.....in time

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    Exactly
     
  9. May 6, 2012 at 6:22 PM
    #9
    gsxrdoug

    gsxrdoug 2012 DCLB

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    And what Oz said don't let them take out the webbing that is what holds the whole thing from falling into your living room.

    You can improve strength by sistering 2x4 or 2x6's to the existing beams, which will increase load strength however pain in the ass.
     
  10. May 6, 2012 at 6:23 PM
    #10
    TacoTitan11

    TacoTitan11 [OP] Well-Known Member

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    is that right? should the flooring be raised higher, for insulation purposes?
     
  11. May 6, 2012 at 6:23 PM
    #11
    OZ-T

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    Yes
     
  12. May 6, 2012 at 6:23 PM
    #12
    greenrustic

    greenrustic Well-Known Member

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    I think you'll be fine. I assume the flooring is plywood and if installed well will tie all the trusses together, make it a stronger system and any weight (which doesn't sound like a lot) will be carried by all the trusses.
     
  13. May 6, 2012 at 6:23 PM
    #13
    TacoTitan11

    TacoTitan11 [OP] Well-Known Member

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    what do you mean by the webbing?
     
  14. May 6, 2012 at 6:24 PM
    #14
    OZ-T

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    The 2x4's or 2x3's that connect the top chord to the bottom chord
     
  15. May 6, 2012 at 6:25 PM
    #15
    gsxrdoug

    gsxrdoug 2012 DCLB

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    imagine lots of triangles.

    Hard to get the stronger Circle up there....
     
  16. May 6, 2012 at 6:26 PM
    #16
    TacoTitan11

    TacoTitan11 [OP] Well-Known Member

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    i just dont to have problems down the road, you know? i know everyone wants to make money but this is my house and i dont want anyone to screw it up . so the weight issue i should be good, i just need to make sure about the insulation issue then, right?
     
  17. May 6, 2012 at 6:26 PM
    #17
    TacoTitan11

    TacoTitan11 [OP] Well-Known Member

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    triangles, gotcha...can someone confirm the insulation issue? do they need to remove the blown insulation and install rolled insulation?
     
  18. May 6, 2012 at 6:26 PM
    #18
    OZ-T

    OZ-T All of those moments....will be lost.....in time

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    Yep
     
  19. May 6, 2012 at 6:28 PM
    #19
    TacoTitan11

    TacoTitan11 [OP] Well-Known Member

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    yes to the removal and re-application of the other insulation? sorry to be a pain in your asses guys
     
  20. May 6, 2012 at 6:28 PM
    #20
    gsxrdoug

    gsxrdoug 2012 DCLB

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    insulate and be done with it. Again store heavier along load bearing walls and lighter stuff don't worry about it.

    I remember my dad having all kinds of crap in the attic with just 2x4 rafters and ply wood laid down not nailed down. You would have to walk along the rafters at certain points.
     
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